Quote Originally Posted by Sabrewings View Post
No. 3800s use a different balancer from the 60* V6 family (3100, 3400, 3500, 3900).

The rubber isn't some stupid idea GM had on a whim. Most harmonic balancers use rubber to do its job. Balance and smooth harmonics generated by the harsh jolts of the combustion stroke. Produces a smooth feel of power, and smooth motion on the serpentine belts instead of a jerking motion.
correct.

my HB came apart on my 3.5 intrigue, it was gnarly destroyed the serpentine belt and the piece that was ribbed slammed into the radiator, went damn near through it. that cost me 250 through GM because finding a 3.5 engine is damn near impossible ( only came in intrigues for 2 years )